Bulk nanostructured carbon phases prepared from C60: approaching the ‘ideal’ hardness
作者： Vadim V Brazhkin , Vladimir L Solozhenko , Vasilii I Bugakov , Sergei N Dub , Oleksandr O Kurakevych
DOI: 10.1088/0953-8984/19/23/236209
关键词:
摘要: New nanomaterials have been prepared by high-temperature treatment of fullerite C60 at moderate (0.1–1.5 GPa) pressures attainable for large-volume pressure apparatus. The structure, EELS spectra, Raman hardness and elastic moduli these carbon substances studied. materials a high (90%) recovery, fairly H~10–15 GPa record values the hardness-to-Young-modulus ratio H/E~0.22. observed is close to 'ideal' limit, which associated with nanostructure materials. This structure represents combination interlinked curved fragments molecules nanographite nuclei.
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sci-hub.se 参考文章(13)
V.V. Brazhkin, A.G. Lyapin, The Bridge Between the Ideal and Real Mechanical Properties for Superhard Materials Springer, Dordrecht. pp. 1- 16 ,(2005) , 10.1007/1-4020-3471-7_1
I. Alexandrou, H.-J. Scheibe, C. J. Kiely, A. J. Papworth, G. A. J. Amaratunga, B. Schultrich, Carbon films with an sp 2 network structure Physical Review B. ,vol. 60, pp. 10903- 10907 ,(1999) , 10.1103/PHYSREVB.60.10903
M. E. Kozlov, M. Hirabayashi, K. Nozaki, M. Tokumoto, H. Ihara, Transformation of C60 fullerenes into a superhard form of carbon at moderate pressure Applied Physics Letters. ,vol. 66, pp. 1199- 1201 ,(1995) , 10.1063/1.113856
H. Sumiya, H. Yusa, T. Inoue, H. Ofuji, T. Irifune, Conditions and mechanism of formation of nano-polycrystalline diamonds on direct transformation from graphite and non-graphitic carbon at high pressure and temperature High Pressure Research. ,vol. 26, pp. 63- 69 ,(2006) , 10.1080/08957950600765863
D. Donadio, L. Colombo, G. Benedek, Elastic moduli of nanostructured carbon films Physical Review B. ,vol. 70, pp. 195419- ,(2004) , 10.1103/PHYSREVB.70.195419
S. J. Townsend, T. J. Lenosky, D. A. Muller, C. S. Nichols, V. Elser, Negatively curved graphitic sheet model of amorphous carbon. Physical Review Letters. ,vol. 69, pp. 921- 924 ,(1992) , 10.1103/PHYSREVLETT.69.921
Hitoshi Sumiya, Super-hard diamond indenter prepared from high-purity synthetic diamond crystal Review of Scientific Instruments. ,vol. 76, pp. 026112- ,(2005) , 10.1063/1.1850654
R A Wood, M H Lewis, G West, S M Bennington, M G Cain, N Kitamura, Transmission electron microscopy, electron diffraction and hardness studies of high-pressure and high-temperature treated C60 Journal of Physics: Condensed Matter. ,vol. 12, pp. 10411- 10421 ,(2000) , 10.1088/0953-8984/12/50/304
A. G. Lyapin, V. V. Brazhkin, E. L. Gromnitskaya, S. V. Popova, O. V. Stal’gorova, R. N. Voloshin, S. C. Bayliss, A. V. Sapelkin, Hardening of fullerite C60 during temperature-induced polymerization and amorphization under pressure Applied Physics Letters. ,vol. 76, pp. 712- 714 ,(2000) , 10.1063/1.125870
A A El-Barbary, S Trasobares, C P Ewels, O Stephan, A V Okotrub, L G Bulusheva, C J Fall, M I Heggie, Electron spectroscopy of carbon materials: experiment and theory Journal of Physics: Conference Series. ,vol. 26, pp. 149- 152 ,(2006) , 10.1088/1742-6596/26/1/035